DFS lineups for DraftKings and FanDuel, tested against thousands of simulated contests before
you enter. Your whole best ball portfolio in one place. Odds with the juice removed. NFL and college
football.
Pick whatever you play. Every number can be opened up, so you can see where it came from.
DFS
DraftKings · FanDuel
Build lineups for the exact contest you are entering, ranked by how they did when that
contest was simulated, and export them in the site's upload format.
The DFS builder, DraftKings NFL Week 3 main slate, after a simulation run.
Once you've drafted twenty teams it's hard to keep track of who you own. See your exposure across every team,
and, for NFL and college football teams, a weekly scoreboard for each one.
The Portfolio Manager on a demo portfolio of 20 NFL drafts: your exposure against what ADP would predict.
Real single-game entries from the ATO team, as the apps show them after the game: DraftKings
Showdown, IND at KC, and FanDuel MVP, WAS at SF. One contest is one result, shown here for the format,
not as proof of anything.
Showdown and MVP
Single-game contests
One game, a captain or MVP slot at 1.5x, and a field that piles onto the same few players. The builder handles both sites.
DraftKingsShowdown Captain Mode. Upload the salary file; lineups export with DraftKings IDs.
FanDuelSingle game with the MVP slot. Upload the player list; lineups export in FanDuel's format.
How it ranksBy simulated return. The number itself is hidden because a reliable correction for it has not been established.
The evidence
How we test ourselves
Ownership is the hardest thing in DFS to predict, so we checked ours against what real contests actually did.
15M+real DraftKings contest entries the ownership model was scored against
52,595player ownership predictions checked, one for every player someone actually rostered
0.830average correlation with real ownership, measured contest by contest
Where the model misses is on the same page as where it hits.
DFS lineup builder and tournament simulator: NFL and college football, with NBA in beta, on DraftKings and FanDuel
Best Ball Portfolio Manager: exposure across all your Underdog teams, college football, NFL and college basketball
Weekly scoreboards and custom team names for your NFL and college football best ball teams, with college basketball when it launches
NFL projections and props vs the market, the CFB moneyline sheet, and the odds board
Secure checkout by Stripe. Monthly and weekly cancel any time from your account.
Before you sign up
Questions
Will this make me money?
No tool can promise that, and anyone who does is selling you something. DFS and
betting are competitive markets. What ATO does is model the contest and the market honestly so
your decisions are better informed. We publish selected model tests and their limitations, and each result names the version tested and its sample size where we have them.
Which sites and slates work today?
NFL on DraftKings and FanDuel, Classic and single-game. College football Classic on both sites, and single-game on FanDuel. NBA is available as a beta; college basketball DFS is still in development. The slate-by-slate table lists how each slate type was tested. Other sports
do not have DFS support yet.
Beat the Field, Waiver Wingman, the hedge calculator and parlay manager, ADP and mock
drafts, the college football slate and schedule, and the weekly NFL report and college recap.
None of them need an account.
What is the difference between the plans?
Only how long they run. The season pass is one $99 payment through the Super Bowl
in February 2027. Monthly is $25 and weekly is $10, and both renew until you cancel. All three open
exactly the same tools.
Can I cancel?
Monthly and weekly plans cancel any time from your account, with no contract and no
phone call. The season pass is a single payment and does not renew, so there is nothing to cancel, but it is
refundable within 14 days of buying it. Monthly charges are refundable within 7 days. To ask, email
[email protected].
Where does the data come from?
Play-by-play and schedule data from nflverse going back to 2009, real DraftKings
contest results, live sportsbook prices, and live injury reports. Model settings are
fitted to that data and documented in public.